1. Department of Infectious Diseases and Epidemiology, Dermatology and Venereology, Virology and Immunology, I. Horbachevsky Ternopil National Medical University, Ternopil, Ukraine.
2. Department of Medical Biochemistry, Virology and Immunology, I. Horbachevsky Ternopil National Medical University, Ternopil, Ukraine.
3. Department of Microbiology, Virology and Immunology, I. Horbachevsky Ternopil National Medical University, Ternopil, Ukraine.
4. Statistical Collaboration Center, Department of Statistics, College of Science, Texas A&M University, College Station, Texas, USA.
5. Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA.